Chapter 4101:3-4 Fittings

[Comment: When a reference is made within this rule to a
federal statutory provision, an industry consensus standard, or any other
technical publication, the specific date and title of the publication as well
as the name and address of the promulgating agency are listed in rule
4101:3-13-01 of the
Administrative Code. The application of the referenced standards shall be
limited and as prescribed in section 102.5 of rule
4101:1-1-01 of the
Administrative Code.]

SECTION 401

GENERAL

401.1 Scope. This chapter shall govern the
materials, design and installation of plumbing fixtures, faucets and fixture
fittings in accordance with the type of occupancy, and shall provide for the
minimum number of fixtures for various types of occupancies.

401.2 Prohibited fixtures and connections. Water
closets having a concealed trap seal or an unventilated space or having walls
that are not thoroughly washed at each discharge in accordance with ASME
A112.19.2M shall be prohibited. Any water closet that permits siphonage of the
contents of the bowl back into the tank shall be prohibited. Trough urinals
shall be prohibited.

401.3 Water conservation. The maximum water flow
rates and flush volume for plumbing fixtures and fixture fittings shall comply
with Section 604.4.

SECTION 402

FIXTURE MATERIALS

402.1 Quality of fixtures. Plumbing fixtures shall
be constructed of approved materials, with smooth, impervious surfaces, free
from defects and concealed fouling surfaces, and shall conform to standards
cited in this code. All porcelain enameled surfaces on plumbing fixtures shall
be acid resistant.

402.2 Materials for specialty fixtures. Materials
for specialty fixtures not otherwise covered in this code shall be of stainless
steel, soapstone, chemical stoneware or plastic, or shall be lined with lead,
copper-base alloy, nickel-copper alloy, corrosion-resistant steel or other
material especially suited to the application for which the fixture is
intended.

402.4 Sheet lead. Sheet lead for pans shall not
weigh less than 4 pounds per square foot ( 19.5
kg/m2) coated with an asphalt paint or other
approved coating.

SECTION 403

MINIMUM PLUMBING FACILITIES

403.1 Minimum number of fixtures. Plumbing
fixtures shall be provided for the type of occupancy and in the minimum number
shown in Table 403.1. Types of occupancies not shown in Table 403.1 shall be
considered individually by the building official. The number of occupants shall
be determined by the building code. Occupancy classification shall be
determined in accordance with the building code. When the actual occupant load
will be significantly different than that determined by section 1004 of the
building code, the building official may establish an alternate basis for
determining the occupant load. This alternate basis shall be included in the
special stipulations and conditions section of the certificate of occupancy
issued for that structure pursuant to section 110 of the building code. For
accessibility requirements, see "Chapter 11, Accessibility" of the building
code.

Exception: Facilities are not required in
buildings less than 100 square feet in area if fixtures are available within
500 feet of the building.

TABLE 403.1

MINIMUM NUMBER OF REQUIRED PLUMBING
FIXTURESa

(See Sections 403.2 and 403.3 )

NO.

CLASSIFICATION

OCCUPANCY

DESCRIPTION

WATER CLOSETS (URINALS SEE footnote
h)

LAVATORIES

BATHTUBS/ SHOWERS

DRINKING FOUNTAINe,
f (SEE SECTION 410.1 )

OTHER

MALE

FEMALE

MALE

FEMALE

1

Assembly

A-1d

Theaters and other buildings for the performing arts
and motion pictures

1 per 125

1 per 65

1 per 200

-

1 per 500

1 service sink

A-2d

Nightclubs, bars, taverns, dance halls and buildings
for similar purposes

Congregate living facilities with 16 or fewer persons
and other R-3 occupancies

1 per 10

1 per 10

1 per 8

1 per 100

1 service sink

R-4

Residential care/assisted living
facilities

1 per 10

1 per 10

1 per 8

1 per 100

1 service sink

8

Storage

S-1

S-2

Structures for the storage of goods, warehouses,
storehouse and freight depots. Low and Moderate Hazard.Structures for the
storage of goods, warehouses, storehouse and freight depots. Low and Moderate
Hazard.

1 per 100

1 per 100

See Section 411

1 per 1,000

1 service sink

a. The fixtures shown are based on one fixture being the
minimum required for the number of persons indicated or any fraction of the
number of persons indicated. The number of occupants shall be determined by the
building code.

b. Toilet facilities for employees shall be separate from
facilities for inmates or patients.

c. A single-occupant toilet room with one water closet and one
lavatory serving not more than two adjacent patient sleeping units shall be
permitted where such room is provided with direct access from each patient
sleeping unit and with provisions for privacy.

d. The occupant load for seasonal outdoor seating and
entertainment areas shall be included when determining the minimum number of
facilities required.

e. The minimum number of required drinking fountains shall
comply with Table 403.1 and Chapter 11 of the building code.

f. Drinking fountains are not required for an occupant load of
15 or fewer. g. Mercantile occupancies are not required to provide customer
facilities when the occupant load is 50 or less.

h. In each bathroom or toilet room, urinals shall not be
substituted for more than 67 percent of the required water closets in assembly
and educational occupancies. Urinals shall not be substituted for more than 50
percent of the required water closets in all other occupancies.

403.1.1 Fixture calculations. To determine the
occupant load of each sex, the total occupant load shall be divided in half. To
determine the required number of fixtures, the fixture ratio or ratios for each
fixture type shall be applied to the occupant load of each sex in accordance
with Table 403.1. Fractional numbers resulting from applying the fixture ratios
of Table 403.1 shall be rounded up to the next whole number. For calculations
involving multiple occupancies, such fractional numbers for each occupancy
shall first be summed and then rounded up to the next whole number.

Exception: The total occupant load shall not be
required to be divided in half where approved statistical data indicates a
distribution of the sexes of other than 50 percent of each sex.

403.1.2 Family or assisted-use toilet and bath
fixtures. Fixtures located within family or assisted-use toilet and
bathing rooms required by Section 1109.2.1 of the building code are permitted
to be included in the number of required fixtures for either the male or female
occupants in assembly and mercantile occupancies.

403.2 Separate facilities. Where plumbing fixtures
are required, separate facilities shall be provided for each sex.

Exceptions:

1. Separate facilities shall not be required for dwelling units
and sleeping units.

2. Separate facilities shall not be required in structures or
tenant spaces with a total occupant load, including both employees and
customers, of 15 or less.

3. Separate facilities shall not be required in mercantile
occupancies in which the maximum occupant load is 50 or less.

403.3 Required public toilet facilities.
Customers, patrons and visitors shall be provided with public toilet facilities
in structures and tenant spaces intended for public utilization. The number of
plumbing fixtures located within the required toilet facilities shall be
provided in accordance with Section 403 for all users. Employees shall be
provided with toilet facilities in all occupancies. Employee toilet facilities
shall be either separate or combined employee and public toilet
facilities.

403.3.1 Access. The route to the public toilet
facilities required by Section 403.3 shall not pass through kitchens, storage
rooms, closets, or similar spaces not available to the public. Access to the
required facilities shall be from within the building or from the exterior of
the building. All routes shall comply with the accessibility requirements of
the building code. The public shall have access to the required toilet
facilities at all times that the building is occupied. The building owner is
permitted to control access to the toilet facilities. Where such access is
controlled, a sign shall be posted indicating how access is to be
obtained.

403.3.2 Location of toilet facilities in occupancies
other than covered malls. In occupancies other than covered mall
buildings, the required public and employee toilet facilities shall be located
not more than one story above or below the space required to be provided with
toilet facilities, and the path of travel to such facilities shall not exceed a
distance of 500 feet (152 m).

Exception: The location and maximum travel
distances to required employee facilities in factory and industrial occupancies
are permitted to exceed that required by this section, provided that the
location and maximum travel distance are approved.

403.3.3 Location of toilet facilities in covered
malls. In covered mall buildings, the required public and employee
toilet facilities shall be located not more than one story above or below the
space required to be provided with toilet facilities, and the path of travel to
such facilities shall not exceed a distance of 300 feet (91 440 mm). In covered
mall buildings, the required facilities shall be based on total square footage,
and facilities shall be installed in each individual store or in a central
toilet area located in accordance with this section. The maximum travel
distance to central toilet facilities in covered mall buildings shall be
measured from the main entrance of any store or tenant space. In covered mall
buildings, where employees' toilet facilities are not provided in the
individual store, the maximum travel distance shall be measured from the
employees' work area of the store or tenant space.

403.3.4 Pay facilities. Where pay
facilities are installed, such facilities shall be in excess of the required
minimum facilities. Required facilities shall be free of charge.

403.4 Signage. Required public facilities shall be
designated by a legible sign for each sex. Signs shall be readily visible and
located near the entrance to each toilet facility.

403.4.1 Directional signage. Directional signage
indicating the route to the public facilities shall be posted in accordance
with Section 3107 of the building code. Such signage shall be located in a
corridor or aisle, at the entrance to the facilities for customers and
visitors.

403.5 Enforcement. This section is identical to
section 2902 of the building code. It is provided in this code for reference
only. Enforcement of the provisions of section 2902 of the building code and
this section is the responsibility of the certified building official of the
certified municipal, county, or township building department having
jurisdiction or the superintendent of the division of industrial
compliance.

SECTION 404

ACCESSIBLE PLUMBING FACILITIES

404.1 Where required. Accessible plumbing
facilities and fixtures shall be provided in accordance with the building code.
The provisions of "Chapter 11, Accessibility" of the building code shall
control the design and construction of facilities for accessibility to
physically disabled persons.

404.2 Enforcement. Enforcement of the provisions
of this section is the responsibility of the certified building official of the
certified municipal, county, or township building department having
jurisdiction or the superintendent of the division of industrial
compliance.

SECTION 405

INSTALLATION OF FIXTURES

405.1 Water supply
protection. The supply lines and fittings for every plumbing
fixture shall be installed so as to prevent backflow.

405.2 Access for cleaning. Plumbing fixtures shall
be installed so as to afford easy access for cleaning both the fixture and the
area around the fixture.

405.3 Setting. Fixtures shall be set level and in
proper alignment with reference to adjacent walls.

405.3.1 Water closets,
urinals, lavatories and bidets. A water
closet, urinal, lavatory or bidet shall not be set closer than 15 inches (381
mm) from its center to any side wall, partition, vanity or other obstruction,
or closer than 30 inches (762 mm) center-to-center between adjacent fixtures.
There shall be at least a 21-inch (533 mm) clearance in front of the water
closet, urinal, lavatory or bidet to any wall, fixture or door. Water closet
compartments shall not be less than 30 inches (762 mm) wide and 60 inches (1524
mm) deep (see Figure 405.3.1). See Chapter 11 of the building code for the
minimum required dimensions for accessible fixtures.

FIGURE 405.3.1

FIXTURE CLEARANCE

405.3.2 Public lavatories. In employee and public
toilet rooms, the required lavatory shall be located in the same room as the
required water closet.

405.4 Floor and wall drainage connections.
Connections between the drain and floor outlet plumbing fixtures shall
be made with a floor flange. The flange shall be attached to the drain and
anchored to the structure. Connections between the drain and wall-hung water
closets shall be made with an approved extension nipple or horn adaptor. The
water closet shall be bolted to the hanger with corrosion-resistant bolts or
screws. Joints shall be sealed with an approved elastomeric gasket,
flange-to-fixture connection complying with ASME A112.4.3 or an approved
setting compound.

405.4.1 Floor flanges. Floor flanges for water
closets or similar fixtures shall not be less than 0.125 inch ( 3.2 mm) thick
for brass, 0.25 inch ( 6.4 mm) thick for plastic, and 0.25 inch ( 6.4 mm) thick
and not less than a 2-inch (51 mm) caulking depth for cast-iron or galvanized
malleable iron.

Floor flanges of hard lead shall weigh not less than 1 pound, 9
ounces ( 0.7 kg) and shall be composed of lead alloy with not less than 7.75
-percent antimony by weight. Closet screws and bolts shall be of brass. Flanges
shall be secured to the building structure with corrosion-resistant screws or
bolts.

Wall-hung water closet bowls shall be supported by a concealed
metal carrier that is attached to the building structural members so that
strain is not transmitted to the closet connector or any other part of the
plumbing system. The carrier shall conform to ASME A112.6.1M or ASME
A112.6.2.

405.5 Water-tight joints. Joints formed where
fixtures come in contact with walls or floors shall be sealed.

405.6 Plumbing in mental health centers.
Deleted.

405.7 Design of overflows. Where any fixture is
provided with an overflow, the waste shall be designed and installed so that
standing water in the fixture will not rise in the overflow when the stopper is
closed, and no water will remain in the overflow when the fixture is
empty.

405.7.1 Connection of overflows. The overflow from
any fixture shall discharge into the drainage system on the inlet or fixture
side of the trap.

Exception: The overflow from a flush tank serving
a water closet or urinal shall discharge into the fixture served.

405.8 Slip joint connections. Slip joints shall be
made with an approved elastomeric gasket and shall only be installed on the
trap outlet, trap inlet and within the trap seal. Fixtures with concealed
slip-joint connections shall be provided with an access panel or utility space
at least 12 inches (305 mm) in its smallest dimension or other approved
arrangement so as to provide access to the slip joint connections for
inspection and repair.

406.2 Water connection. The water supply to an
automatic clothes washer shall be protected against backflow by an air gap
installed integrally within the machine conforming to ASSE 1007 or with the
installation of a backflow preventer in accordance with Section 608.

406.3 Waste connection. The waste from an
automatic clothes washer shall discharge through an air break into a standpipe
in accordance with Section 802.4 or into a laundry sink. The trap and fixture
drain for an automatic clothes washer standpipe shall be a minimum of 2 inches
(51 mm) in diameter. The automatic clothes washer fixture drain shall connect
to a branch drain or drainage stack a minimum of 3 inches (76 mm) in diameter.
Automatic clothes washers that discharge by gravity shall be permitted to drain
to a waste receptor or an approved trench drain.

408.2 Water connection. The water supply to a
bidet shall be protected against backflow by an air gap or backflow preventer
in accordance with Section 608.13.1, 608.13.2, 608.13.3, 608.13.5, 608.13.6 or
608.13.8.

408.3 Bidet water temperature. The discharge water
temperature from a bidet fitting shall be limited to a maximum temperature of
110°F (43°C) by a water temperature limiting device conforming to ASSE
1070.

409.2 Water connection. The water supply to a
dishwashing machine shall be protected against backflow by an air gap or
backflow preventer in accordance with Section 608.

409.3 Waste connection. The waste connection of a
dishwashing machine shall comply with Section 802.1.6 or 802.1.7, as
applicable.

SECTION 410

DRINKING FOUNTAINS

410.1 Approval. Drinking fountains shall conform
to ASME A112.19.1M, ASME A112.19.2M or ASME A112.19.9M and water coolers shall
conform to ARI 1010. Drinking fountains and water coolers shall conform to NSF
61, Section 9. Where water is served in restaurants, or where bottled water
coolers are provided in other occupancies, drinking fountains shall not be
required.

410.2 Prohibited location. Drinking fountains,
water coolers and bottled water dispensers shall not be installed in public
restrooms.

412.2 Floor drains. Floor drains shall have
removable strainers. The floor drain shall be constructed so that the drain is
capable of being cleaned. Access shall be provided to the drain inlet. Ready
access shall be provided to floor drains.

412.4 Public laundries and central washing facilities.
In public coin-operated laundries and in the central washing facilities
of multiple-family dwellings, the rooms containing automatic clothes washers
shall be provided with floor drains located to readily drain the entire floor
area. Such drains shall have a minimum outlet of not less than 3 inches (76 mm)
in diameter.

413.4 Water supply required. All food waste
grinders shall be provided with a supply of cold water. The water supply shall
be protected against backflow by an air gap or backflow preventer in accordance
with Section 608.

SECTION 414

GARBAGE CAN WASHERS

414.1 Water connection. The water supply to a
garbage can washer shall be protected against backflow by an air gap or a
backflow preventer in accordance with Section 608.13.1, 608.13.2, 608.13.3,
608.13.5, 608.13.6 or 608.13.8.

414.2 Waste connection. Garbage can washers shall
be trapped separately. The receptacle receiving the waste from the washer shall
have a removable basket or strainer to prevent the discharge of large particles
into the drainage system.

415.2 Waste outlet. Each compartment of a laundry
tray shall be provided with a waste outlet a minimum of 1 ½ inches (38
mm) in diameter and a strainer or crossbar to restrict the clear opening of the
waste outlet.

416.3 Lavatory waste outlets. Lavatories shall
have waste outlets not less than
11/4 inches (32 mm) in
diameter. A strainer, pop-up stopper, crossbar or other device shall be
provided to restrict the clear opening of the waste outlet.

416.5 Tempered water for public hand-washing facilities.
Tempered water shall be delivered from public hand-washing facilities.
Tempered water shall be delivered through an approved water-temperature
limiting device that conforms to ASSE 1070 or CSA B 125.3.

417.2 Water supply riser. Water supply risers from
the shower valve to the shower head outlet, whether exposed or concealed, shall
be attached to the structure. The attachment to the structure shall be made by
the use of support devices designed for use with the specific piping material
or by fittings anchored with screws.

417.3 Shower waste outlet. Waste outlets serving
showers shall be at least 1 ½ inches (38 mm) in diameter and, for other
than waste outlets in bathtubs, shall have removable strainers not less than 3
inches (76 mm) in diameter with strainer openings not less than ¼ inch (
6.4 mm) in minimum dimension. Where each shower space is not provided with an
individual waste outlet, the waste outlet shall be located and the floor
pitched so that waste from one shower does not flow over the floor area serving
another shower. Waste outlets shall be fastened to the waste pipe in an
approved manner.

417.4 Shower compartments. All shower compartments
shall have a minimum of 900 square inches ( 0.58 m2)
of interior cross-sectional area. Shower compartments shall not be less than 30
inches (762 mm) in minimum dimension measured from the finished interior
dimension of the compartment, exclusive of fixture valves, showerheads, soap
dishes, and safety grab bars or rails. Except as required in Section 404, the
minimum required area and dimension shall be measured from the finished
interior dimension at a height equal to the top of the threshold and at a point
tangent to its centerline and shall be continued to a height not less than 70
inches (1778 mm) above the shower drain outlet.

Exception: Shower compartments having not less
than 25 inches (635 mm) in minimum dimension measured from the finished
interior dimension of the compartment, provided that the shower compartment has
a minimum of 1,300 square inches (.838 m2) of
cross-sectional area.

417.4.1 Wall area. The wall area above built-in
tubs with installed shower heads and in shower compartments shall be
constructed of smooth, noncorrosive and nonabsorbent waterproof materials to a
height not less than 6 feet (1829 mm) above the room floor level, and not less
than 70 inches (1778 mm) where measured from the compartment floor at the
drain. Such walls shall form a water-tight joint with each other and with
either the tub, receptor or shower floor.

417.4.2 Access. The shower compartment access and
egress opening shall have a minimum clear and unobstructed finished width of 22
inches (559 mm). Shower compartments required to be designed in conformance to
accessibility provisions shall comply with Section 404.1.

417.5.2 Shower lining. Floors under shower
compartments, except where prefabricated receptors have been provided, shall be
lined and made water tight utilizing material complying with Sections 417.5.2.1
through 417.5.2.5. Such liners shall turn up on all sides at least 2 inches (51
mm) above the finished threshold level. Liners shall be recessed and fastened
to an approved backing so as not to occupy the space required for wall
covering, and shall not be nailed or perforated at any point less than 1 inch
(25 mm) above the finished threshold. Liners shall be pitched one-fourth unit
vertical in 12 units horizontal (2-percent slope) and shall be sloped toward
the fixture drains and be securely fastened to the waste outlet at the seepage
entrance, making a water-tight joint between the liner and the outlet. The
completed liner shall be tested in accordance with Section 312.9.

Exceptions:

1. Floor surfaces under shower heads provided for rinsing laid
directly on the ground are not required to comply with this section.

2. Where a sheet-applied, load-bearing, bonded, waterproof
membrane is installed as the shower lining, the membrane shall not be required
to be recessed.

3. The shower liner test is not
required for one-, two-, or three-family dwellings unless required by the
shower liner manufacturer's installation instructions.

Nonplasticized chlorinated polyethylene sheet shall be a
minimum 0.040 inch ( 1.02 mm) thick, and shall meet
the requirements of ASTM D 4068. The liner shall be joined in accordance with
the manufacturer's installation instructions.

417.5.2.3 Sheet lead. Sheet lead shall not weigh
less than 4 pounds per square foot ( 19.5 kg/m2)
coated with an asphalt paint or other approved coating. The lead sheet shall be
insulated from conducting substances other than the connecting drain by
15-pound ( 6.80 kg) asphalt felt or its equivalent. Sheet lead shall be joined
by burning.

417.5.2.4 Sheet copper. Sheet copper shall conform
to ASTM B 152 and shall not weigh less than 12 ounces per square foot ( 3.7
kg/m2). The copper sheet shall be insulated from
conducting substances other than the connecting drain by 15-pound ( 6.80 kg)
asphalt felt or its equivalent. Sheet copper shall be joined by brazing or
soldering.

418.2 Sink waste outlets. Sinks shall be provided
with waste outlets a minimum of
11/2 inches (38 mm) in
diameter. A strainer or crossbar shall be provided to restrict the clear
opening of the waste outlet.

419.3 Surrounding material. Wall and floor space
to a point 2 feet (610 mm) in front of a urinal lip and 4 feet (1219 mm) above
the floor and at least 2 feet (610 mm) to each side of the urinal shall be
waterproofed with a smooth, readily cleanable, nonabsorbent material.

Water closet bowls for public or employee toilet facilities
shall be of the elongated type.

420.3 Water closet seats. Water closets shall be
equipped with seats of smooth, nonabsorbent material. All seats of water
closets provided for public or employee toilet facilities shall be of the
hinged open-front type. Integral water closet seats shall be of the same
material as the fixture. Water closet seats shall be sized for the water closet
bowl type.

420.4 Water closet connections. A 4-inch by 3-inch
(102 mm by 76 mm) closet bend shall be acceptable. Where a 3-inch (76 mm) bend
is utilized on water closets, a 4-inch by 3-inch (102 mm by 76 mm) flange shall
be installed to receive the fixture horn.

421.5 Access to pump. Access shall be provided to
circulation pumps in accordance with the fixture or pump manufacturer's
installation instructions. Where the manufacturer's instructions do not specify
the location and minimum size of field-fabricated access openings, a 12-inch by
12-inch (305 mm by 305 mm) minimum sized opening shall be installed to provide
access to the circulation pump. Where pumps are located more than 2 feet (609
mm) from the access opening, an 18-inch by 18-inch (457 mm by 457 mm) minimum
sized opening shall be installed. A door or panel shall be permitted to close
the opening. In all cases, the access opening shall be unobstructed and of the
size necessary to permit the removal and replacement of the circulation
pump.

422.1 Scope. This section shall govern those
aspects of health care plumbing systems that differ from plumbing systems in
other structures. Health care plumbing systems shall conform to the
requirements of this section in addition to the other requirements of this
code. The provisions of this section shall apply to the special devices and
equipment installed and maintained in the following occupancies: nursing homes,
homes for the aged, orphanages, infirmaries, first aid stations, psychiatric
facilities, clinics, professional offices of dentists and doctors, mortuaries,
educational facilities, surgery, dentistry, research and testing laboratories,
establishments manufacturing pharmaceutical drugs and medicines, and other
structures with similar apparatus and equipment classified as plumbing.

422.2 Approval. All special plumbing fixtures,
equipment, devices and apparatus shall be of an approved type.

422.3 Protection. All devices, appurtenances,
appliances and apparatus intended to serve some special function, such as
sterilization, distillation, processing, cooling, or storage of ice or foods,
and that connect to either the water supply or drainage system, shall be
provided with protection against backflow, flooding, fouling, contamination of
the water supply system and stoppage of the drain.

422.4 Materials. Fixtures designed for therapy,
special cleansing or disposal of waste materials, combinations of such
purposes, or any other special purpose, shall be of smooth, impervious,
corrosion-resistant materials and, where subjected to temperatures in excess of
180°F (82°C), shall be capable of withstanding, without damage, higher
temperatures.

422.5 Access. Access shall be provided to
concealed piping in connection with special fixtures where such piping contains
steam traps, valves, relief valves, check valves, vacuum breakers or other
similar items that require periodic inspection, servicing, maintenance or
repair. Access shall be provided to concealed piping that requires periodic
inspection, maintenance or repair.

422.6 Clinical sink. A clinical sink shall have an
integral trap in which the upper portion of a visible trap seal provides a
water surface. The fixture shall be designed so as to permit complete removal
of the contents by siphonic or blowout action and to reseal the trap. A
flushing rim shall provide water to cleanse the interior surface. The fixture
shall have the flushing and cleansing characteristics of a water closet.

422.7 Prohibited usage of clinical sinks and service
sinks. A clinical sink serving a soiled utility room shall not be
considered as a substitute for, or be utilized as, a service sink. A service
sink shall not be utilized for the disposal of urine, fecal matter or other
human waste.

422.8 Ice prohibited in soiled utility room.
Machines for manufacturing ice, or any device for the handling or
storage of ice, shall not be located in a soiled utility room.

422.9 Sterilizer equipment requirements. The
approval and installation of all sterilizers shall conform to the requirements
of the mechanical code.

422.9.1 Sterilizer piping. Access for the purposes
of inspection and maintenance shall be provided to all sterilizer piping and
devices necessary for the operation of sterilizers.

422.9.2 Steam supply. Steam supplies to
sterilizers, including those connected by pipes from overhead mains or
branches, shall be drained to prevent any moisture from reaching the
sterilizer. The condensate drainage from the steam supply shall be discharged
by gravity.

422.9.4 Condensers. Pressure sterilizers shall be
equipped with a means of condensing and cooling the exhaust steam vapors.
Nonpressure sterilizers shall be equipped with a device that will automatically
control the vapor, confining the vapors within the vessel.

422.10 Special elevations. Control valves, vacuum
outlets and devices protruding from a wall of an operating, emergency,
recovery, examining or delivery room, or in a corridor or other location where
patients are transported on a wheeled stretcher, shall be located at an
elevation that prevents bumping the patient or stretcher against the
device.

SECTION 423

SPECIALTY PLUMBING FIXTURES

423.1 Water connections. Baptisteries, ornamental
and lily pools, aquariums, ornamental fountain basins, swimming pools, and
similar constructions, where provided with water supplies, shall be protected
against backflow in accordance with Section 608.

423.2 Approval. Specialties requiring water and
waste connections shall be submitted for approval.

424.3 Individual shower valves.
Individual shower and tub-shower combination valves shall be balanced-pressure,
thermostatic or combination balanced-pressure/thermostatic valves that conform
to the requirements of ASSE 1016 or ASME A112.18.1/CSA B 125.1 and shall be
installed at the point of use. Shower and tub-shower combination valves
required by this section shall be equipped with a means to limit the maximum
setting of the valve to 120°F (49°C), which shall be field adjusted in
accordance with the manufacturer's instructions. In-line thermostatic valves
shall not be utilized for compliance with this section.

424.4 Multiple (gang) showers.
Multiple (gang) showers supplied with a single-tempered water supply pipe shall
have the water supply for such showers controlled by an approved automatic
temperature control mixing valve that conforms to ASSE 1069 or CSA B125, or
each shower head shall be individually controlled by a balanced-pressure,
thermostatic or combination balanced-pressure/thermostatic valve that conforms
to ASSE 1016 or CSA B125 and is installed at the point of use. Such valves
shall be equipped with a means to limit the maximum setting of the valve to
120°F (49°C), which shall be field adjusted in accordance with the
manufacturer's instructions.

424.5 Bathtub and whirlpool bathtub valves. The
hot water supplied to bathtubs and whirlpool bathtubs shall be limited to a
maximum temperature of 120°F (49°C) by a water-temperature limiting
device that conforms to ASSE 1070 or CSA B 125.3, except where such protection
is otherwise provided by a combination tub/shower valve in accordance with
Section 424.3.

425.1 Flushing devices required. Each water
closet, urinal, clinical sink and any plumbing fixture that depends on trap
siphonage to discharge the fixture contents to the drainage system shall be
provided with a flushometer valve, flushometer tank or a flush tank designed
and installed to supply water in quantity and rate of flow to flush the
contents of the fixture, cleanse the fixture and refill the fixture
trap.

425.1.1 Separate for each fixture. A flushing
device shall not serve more than one fixture.

425.2 Flushometer valves and tanks. Flushometer
valves and tanks shall comply with ASSE 1037. Vacuum breakers on flushometer
valves shall conform to the performance requirements of ASSE 1001 or CAN/CSA
B64.1.1. Access shall be provided to vacuum breakers. Flushometer valves shall
be of the water-conservation type and shall not be utilized where the water
pressure is lower than the minimum required for normal operation. When
operated, the valve shall automatically complete the cycle of operation,
opening fully and closing positively under the water supply pressure. Each
flushometer valve shall be provided with a means for regulating the flow
through the valve. The trap seal to the fixture shall be automatically refilled
after each valve flushing cycle.

425.3 Flush tanks. Flush tanks equipped for manual
flushing shall be controlled by a device designed to refill the tank after each
discharge and to shut off completely the water flow to the tank when the tank
is filled to operational capacity. The trap seal to the fixture shall be
automatically refilled after each flushing. The water supply to flush tanks
equipped for automatic flushing shall be controlled with a timing device or
sensor control devices.

425.3.1 Fill valves. All flush tanks shall be
equipped with an antisiphon fill valve conforming to ASSE 1002 or CSA B 125.3.
The fill valve backflow preventer shall be located at least 1 inch (25 mm)
above the full opening of the overflow pipe.

425.3.2 Overflows in flush tanks. Flush tanks
shall be provided with overflows discharging to the water closet or urinal
connected thereto and shall be sized to prevent flooding the tank at the
maximum rate at which the tanks are supplied with water according to the
manufacturer's design conditions. The opening of the overflow pipe shall be
located above the flood level rim of the water closet or urinal or above a
secondary overflow in the flush tank.